Flashcards on High School Mathematical Literacy Exam
High School Mathematical Literacy Exam: Full Study Guide
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Mathematical literacy
28 cards
Card 1
Question: What type of graph shows the votes (in %) for three political parties over three elections (2014, 2019, 2024) with lines connecting each party's perce
Answer: A line graph (time series line graph) showing each party's vote percentage across the three election years.
Card 2
Question: From a line graph of party vote percentages in 2019, how do you identify which party received the most votes?
Answer: Find the party whose line is highest on the vertical axis (percentage) at the 2019 (middle) year—this party received the most votes in 2019.
Card 3
Question: How do you calculate the difference in percentage between the most votes in 2014 and the most votes in 2024 using the graph?
Answer: Read the highest party percentage in 2014 and the highest party percentage in 2024 from the graph, then subtract: Difference = (highest % in 2014) − (
Card 4
Question: Define 'gross income' in the context of assessing a home loan affordability calculator.
Answer: Gross income is the total monthly income before any deductions (taxes, pension, or other withholdings).
Card 5
Question: How many months are in a 20-year loan repayment period?
Answer: 20 years × 12 months/year = 240 months.
Card 6
Question: What is the formula given for the real cost of a loan in this paper?
Answer: Real cost of loan = Monthly repayment × Loan period in months + Initiation fee.
Card 7
Question: Using Monthly repayment = R22 500, loan period = 240 months, and initiation fee = R1 207,50, how do you compute the real cost of the loan?
Answer: Real cost = 22 500 × 240 + 1 207,50 = 5 400 000 + 1 207,50 = R5 401 207,50.
Card 8
Question: How would you verify if a reported home loan amount of R2 076 207 is consistent with a purchase price of R2 326 207 and a deposit of R250 000?
Answer: Check: Home loan amount = Purchase price − Deposit. Calculate 2 326 207 − 250 000 = R2 076 207; if equal, the calculation is correct.
Card 9
Question: Write the cost formula for a cell-phone contract that charges R450 per month with 100 free minutes and R1,40 per minute (or part thereof) thereafter.
Answer: Total cost = 450 if minutes ≤ 100; if minutes > 100, Total cost = 450 + 1,40 × (minutes − 100).
Card 10
Question: How is the prepaid option cost calculated when the rate is R2,25 per minute?
Answer: Prepaid total cost = 2,25 × number of minutes.